Tamara Samsonova, a suspected serial killer better known as “Granny Ripper” might have eaten her victims, Russian authorities say. Samsonova confessed to 11 murders in a reign of terror that spanned decades. Tamara revealed her gruesome hobby in a diary, which also indicates Samsonova may have eaten her victims.

Tamara Samsonova, an ex-hotel worker, was arrested on July 26 after she was spotted by CCTV cameras removing the body of her latest victim in a black plastic bag near her St. Petersburg home, reports the Daily Mail. Tamara Samsonova is believed to have beheaded and dismembered her victims after killing them, “like a real-life version of Hannibal Lecter,” reports New York Daily News.

Tamara kept her diaries in Russian, English, and German, and they didn’t just detail her killings — she also kept a log of black magic and astrology, leading police to believe the killings were ritualistic in nature. One chilling entry details how Tamara Samsonova killed someone she knew well. “I killed my tenant Volodya, cut him to pieces in the bathroom with a knife, put the pieces of his body in plastic bags and threw them away in the different parts of Frunzensky district,” Tamara confessed in an entry.

According to Russian police, Tamara Samsonova particularly liked removing and eating lungs. A source close to the case told the Daily Mail that the possibility Tamara is a cannibal “is not excluded,” and Russia’s equivalent of the FBI said that internal organs, in particular lungs, were removed from the bodies of victims. Samsonova is also suspected of killing her husband, who has been missing since 2005.

Tamara’s diary suggested that in order to kill her final victim, Valentina Ulanova, Samsonova, who was her elderly friend’s care worker, administered an overdose of sleeping pills. Samsonova then dismembered the victim’s body with a hacksaw — while the victim was still alive. Samsonova was arrested after the head of Ulanova was found near a pond on Dimitrova Street in St. Petersburg.

Tamara Samsonova told police that she killed her friend because they argued over dirty dishes, reports the New York Daily News. The confession has caused police to compare the elaborate diary entries with known cases of unsolved murder cases in the St. Petersburg area. In fact, a headless, armless, and legless man’s body was found on the same street 12-years ago. Evidence found in Tamara’s home, which includes the victim’s business card, links Samsonova to the chilling crime.